dbertoni 00/11/20 11:56:06
Added: c/src/PlatformSupport XalanDOMStringCache.cpp
XalanDOMStringCache.hpp
Log:
Initial revision.
Revision Changes Path
1.1 xml-xalan/c/src/PlatformSupport/XalanDOMStringCache.cpp
Index: XalanDOMStringCache.cpp
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.ibm.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
// Class header file.
#include "XalanDOMStringCache.hpp"
#include "DOMStringHelper.hpp"
#include "STLHelper.hpp"
XalanDOMStringCache::XalanDOMStringCache(unsigned int theMaximumSize) :
m_availableList(),
m_busyList(),
m_maximumSize(theMaximumSize)
{
}
XalanDOMStringCache::~XalanDOMStringCache()
{
clear();
}
XalanDOMString&
XalanDOMStringCache::get()
{
if (m_availableList.size() == 0)
{
m_busyList.push_back(new XalanDOMString());
}
else
{
m_busyList.push_back(m_availableList.back());
m_availableList.pop_back();
}
return *m_busyList.back();
}
bool
XalanDOMStringCache::release(XalanDOMString& theString)
{
#if !defined(XALAN_NO_NAMESPACES)
using std::find;
#endif
StringListType::iterator i =
find(m_busyList.begin(),
m_busyList.end(),
&theString);
if (i == m_busyList.end())
{
return false;
}
else
{
if (m_availableList.size() > m_maximumSize)
{
delete *i;
}
else
{
::clear(theString);
m_availableList.push_back(*i);
}
m_busyList.erase(i);
return true;
}
}
void
XalanDOMStringCache::clear()
{
#if !defined(XALAN_NO_NAMESPACES)
using std::for_each;
#endif
for_each(m_busyList.begin(),
m_busyList.end(),
DeleteFunctor<XalanDOMString>());
m_busyList.clear();
for_each(m_availableList.begin(),
m_availableList.end(),
DeleteFunctor<XalanDOMString>());
m_availableList.clear();
}
void
XalanDOMStringCache::reset()
{
const StringListType::size_type theSize =
m_availableList.size();
while(m_busyList.size() > 0)
{
assert(m_busyList.back() != 0);
if (theSize > m_maximumSize)
{
delete m_busyList.back();
}
else
{
::clear(*m_busyList.back());
m_availableList.push_back(m_busyList.back());
}
m_busyList.pop_back();
}
}
1.1 xml-xalan/c/src/PlatformSupport/XalanDOMStringCache.hpp
Index: XalanDOMStringCache.hpp
===================================================================
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.ibm.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#if !defined(XALAN_DOMSTRINGCACHE_HEADER_GUARD)
#define XALAN_DOMSTRINGCACHE_HEADER_GUARD
// Base include file. Must be first.
#include <PlatformSupport/PlatformSupportDefinitions.hpp>
#include <deque>
#include <vector>
#include <XalanDOM/XalanDOMString.hpp>
class XALAN_PLATFORMSUPPORT_EXPORT XalanDOMStringCache
{
public:
enum { eDefaultMaximumSize = 100 };
#if defined(XALAN_NO_NAMESPACES)
typedef vector<XalanDOMString*> StringListType;
#else
typedef std::vector<XalanDOMString*> StringListType;
#endif
explicit
XalanDOMStringCache(unsigned int theMaximumSize =
eDefaultMaximumSize);
~XalanDOMStringCache();
unsigned int
getMaximumSize() const
{
return m_maximumSize;
}
void
setMaximumSize(unsigned int theSize)
{
m_maximumSize = theSize;
}
XalanDOMString&
get();
bool
release(XalanDOMString& theString);
/*
* Clear all of the strings in the cache. This
* destroys all of the strings.
*
*/
void
clear();
/*
* Reset the cache so that all strings that are
* currently in use are available.
*/
void
reset();
class GetAndRelease
{
public:
GetAndRelease(XalanDOMStringCache& theCache) :
m_cache(theCache),
m_string(&theCache.get())
{
}
~GetAndRelease()
{
m_cache.release(*m_string);
}
XalanDOMString&
get() const
{
return *m_string;
}
private:
XalanDOMStringCache& m_cache;
XalanDOMString* const m_string;
};
private:
// not implemented
XalanDOMStringCache(const XalanDOMStringCache&);
bool
operator==(const XalanDOMStringCache&) const;
XalanDOMStringCache&
operator=(const XalanDOMStringCache&);
/**
* A list to hold the strings that are available...
*/
StringListType m_availableList;
/**
* A list to hold the strings that are busy...
*/
StringListType m_busyList;
unsigned int m_maximumSize;
};
#endif // XALAN_RESULTNAMESPACESSTACK_HEADER_GUARD
